Gerald Cohen, MD
NPI 1306877253 · Internal Medicine Physician · Los Alamitos, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald Cohen, MD is a Internal Medicine Physician provider in Los Alamitos, CA (NPI 1306877253).
Provider details
- NPI number
- 1306877253
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G34856 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,637 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 930 | $81 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 195 | $51 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 110 | $179 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $137 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 72 | $140 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 249 | 69 |
| Amlodipine Besylate | 217 | 61 |
| Levothyroxine Sodium | 207 | 49 |
| Losartan Potassium | 167 | 46 |
| Lisinopril | 132 | 34 |
| Gabapentin | 124 | 25 |
| Pantoprazole Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 1045 Atlantic Ave Ste 506Long Beach, CA 90813-3414Phone: (562) 491-9923Fax: (562) 437-8646
Registry dates
- Enumerated
- 2006-07-06
- Last updated
- 2018-03-17
Frequently asked questions
- What is Gerald Cohen's NPI number?
- Gerald Cohen's National Provider Identifier (NPI) is 1306877253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Cohen's specialty?
- Gerald Cohen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Cohen located?
- Gerald Cohen's practice location on file with NPPES is 3801 Katella Ave, Los Alamitos, CA 90720-3338.
- What is Gerald Cohen's phone number?
- The practice phone number listed in the NPPES registry for Gerald Cohen is (562) 594-9546.
- Does Gerald Cohen accept Medicare?
- Gerald Cohen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald Cohen's NPI active?
- Yes — Gerald Cohen's NPI (1306877253) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.